need help on buying a cpl of things

so I went to a guy to talk abt building a new pc he said asrock z77 ex6 I can't get a warranty on it I should choose a good msi or intel mb to overclock need suggestions on that, live in rajshahi also asked thr same guy abt 3570k i5 processor. he calls a guy at source says to him k series processors aren't available in bd I'm like wtf do ppl live under rocks that they think k series isn't available and its computer source who said this....so I need a suggest on where I can get the i5 3570k processor, the asrock mb from where I can get a warranty or a suggest on a intel or msi mb, also this mb will support a dual ch 8gb corsair ram, 650w psu and a 7950 either normal or oc series depending if I can get it at the oc one for the same price as the normal one (33k)

dun even get me started bro I saw a list of a kid who bought a gaming pc for 85k they are freakin crooks! he gave him a dual core 2nd gen 2.6 not even a 3rd gen overpriced it to 8.6k I was like wtf gave him a xfx gpu 2gb ddr 5 n some other things all overpriced the only that I thought was not a 128ssd for 12.5k so I thought abt it but then I remembered the overpricing

dun even get me started bro I saw a list of a kid who bought a gaming pc for 85k they are freakin crooks! he gave him a dual core 2nd gen 2.6 not even a 3rd gen overpriced it to 8.6k I was like wtf gave him a xfx gpu 2gb ddr 5 n some other things all overpriced the only that I thought was not a 128ssd for 12.5k so I thought abt it but then I remembered the overpricing